discussed Cited "see, e.g." United States Ex Rel. Nathaniel Williams v. J. E. Lavallee, Warden of Clinton Correctional Facility, Dannemora, N. Y. (2×) See also, Nelson v. Peyton, 415 F.2d 1154, 1157-58 (4th Cir. 1969), cert. denied, 397 U.S. 1007 , 99 S.Ct. 1235 , 25 L.Ed.2d 420 (1970); Victor v. Lane, 394 F.2d 268, 270-271 (7th Cir. 1968). 16 Indeed, the very purpose of the Smith rule was to avoid the necessity of conducting the type of evidentiary hearing that must be held here.